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| Mirrors > Home > MPE Home > Th. List > elrab3 | Structured version Visualization version GIF version | ||
| Description: Membership in a restricted class abstraction, using implicit substitution. (Contributed by NM, 5-Oct-2006.) |
| Ref | Expression |
|---|---|
| elrab.1 | ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜓)) |
| Ref | Expression |
|---|---|
| elrab3 | ⊢ (𝐴 ∈ 𝐵 → (𝐴 ∈ {𝑥 ∈ 𝐵 ∣ 𝜑} ↔ 𝜓)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elrab.1 | . . 3 ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜓)) | |
| 2 | 1 | elrab 3644 | . 2 ⊢ (𝐴 ∈ {𝑥 ∈ 𝐵 ∣ 𝜑} ↔ (𝐴 ∈ 𝐵 ∧ 𝜓)) |
| 3 | 2 | baib 545 | 1 ⊢ (𝐴 ∈ 𝐵 → (𝐴 ∈ {𝑥 ∈ 𝐵 ∣ 𝜑} ↔ 𝜓)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 = wceq 1569 ∈ wcel 2144 {crab 3412 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1572 df-ex 1812 df-sb 2099 df-clab 2739 df-cleq 2752 df-clel 2835 df-rab 3413 df-v 3452 |
| This theorem is used by: unimax 4904 fnelfp 7180 fnelnfp 7182 fnse 8150 fin23lem30 10420 isf32lem5 10435 negn0 11745 ublbneg 13060 supminf 13062 sadval 16626 smuval 16651 dvdslcm 16773 dvdslcmf 16806 isprm2lem 16856 isacs1i 17831 isinito 18171 istermo 18172 subgacs 19371 nsgacs 19372 odngen 19791 sdrgacs 21058 lssacs 21242 ssdifidllem 21640 mretopd 23410 txkgen 23971 xkoco1cn 23976 xkoco2cn 23977 xkoinjcn 24006 ordthmeolem 24120 shft2rab 25829 sca2rab 25833 lhop1lem 26333 ftalem5 27404 vmasum 27543 eqcuts2 28172 elmade 28243 addonbday 28665 israg 29172 ebtwntg 29560 eupth2lem3lem3 30831 eupth2lem3lem4 30832 eupth2lem3lem6 30834 cycpmco2lem1 33687 cycpmco2lem4 33690 cycpmco2 33694 1arithufdlem2 34077 tgoldbachgt 35292 cvmliftmolem1 36046 nmulr0 36944 neibastop3 37150 fdc 38680 pclvalN 40948 dvhb1dimN 42044 hdmaplkr 42971 aks4d1p8 43138 sticksstones1 43197 fsuppssind 43622 diophren 43820 islmodfg 44071 fsovcnvlem 45013 ntrneiel 45081 radcnvrat 45298 supminfxr 46474 stoweidlem34 47044 |
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